I don’t have time for your sealioning. I’m going to bed with my wife now.
I was only poking fun caue it wasnt really relevant to your discussion haha.
But Anniversary is almost certainly a port of custom edition and the gearbox modified engine.
It makes sense as it was altered for 64bit architecture and CE is built for 32bit. So the obvious production choice for a port to the 360 would be CE² despite the flaws of that port.
Hacked anniversary seems to show us that.
The gearbox issues are visible in the games textuers and the online components are derivatives of CE²’s.
CEA and by extension MCC use gearboxes port.
The teleport delay, the physics issues, the extensions thay are all present or at least were.
Havent kept up with mccs updates but far as I am aware 343i have done lots to rectify the issues of gearboxes CE² framework.
Id have to see a considerably powerful proof of it being a port of the original release because anything I’ve seen since the launch of CEA strongly suggests its not.
By making car washes:
https://www.youtube.com/watch?v=cVqrgmg0Vbg
THAT REALLY SUCKS BIG TIME!! WHAT A LOAD OF CRAP! FORGE WON’T BE WORTH A CRAP WITHOUT A CUSTOM GAME BROWSER AND THAT’S A FACT!!
Peace! 
Also, custom miniboss scripting:
https://www.youtube.com/watch?v=AMeLDOdM8vY
Happy to report, CUSTOM GAMES BROWSER LAUNCHED EARLY!!!
lol we been know for like a week